Senior Project Manager (Utilities and Infrastructure O&M) Site Operations

Sizewell C Company; Leiston; On-site; GBP 70,000 - 95,000; Full time

Benefits offered by this job

Annual Leave: 28 days + 2 with service

Up to 10% annual bonus

Defined Contribution Pension up to 7.5

15% employer contribution

Flexible Benefits

Job summary

Sizewell C is seeking a Senior Project Manager to lead the operation and maintenance of onsite utilities and infrastructure, guiding services across the project footprint. You will supervise service delivery managers, PMs, and contractors to ensure safe, compliant operations and continual improvement.

The role requires significant experience in infrastructure or utilities projects, with a strong focus on safety, quality and delivery.

Qualifications

• Experience delivering infrastructure, utilities or major construction projects.
• Strong leadership and stakeholder management abilities.
• Commitment to safety, quality and operational excellence.

Responsibilities

• Leading Site Operations Utilities & Infrastructure operations and maintenance of handing over built assets across the Sizewell C site
• Managing Service Delivery Managers, PMs / APMs and specialist contractors
• Overseeing a portfolio with an annual budget of approximately £30m
• Driving health, safety, compliance and operational performance
• Managing stakeholder relationships across the project and supply chain
• Coordinating utility and infrastructure handovers from construction into operations
• Supporting future infrastructure, utilities and site operations projects
• Providing clear leadership, governance and commercial oversight

Skills

Strong leadership

Stakeholder management

Programme delivery skills

Safety quality commitment

Project controls

Education

Degree-qualified in Construction Management, Civil Engineering, Engineering or similar

Tools

SMSTS

IOSH

Job description

Sizewell C's business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards' principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.

Sizewell C is economically regulated by OFGEM under the RAB model similar to other UK electricity distribution networks and Thames Tideway.

Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C's ambition.

Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by; The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.

Senior Project Manager (Utilities and Infrastructure O&M) Site Operations

Location: Leiston, Suffolk, 5 days per week onsite.

Salary: Competitive, dependent on experience, plus benefits

Benefits include:

• Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
• Bonus: Up to 10% annual bonus.
• Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution 15% employer contribution.
• Flexible Benefits: Additional allowance for a variety of benefits.

Closing Date: Monday 12 October 2026

Lead One of the UK's Most Significant Infrastructure Projects

Sizewell C is one of the UK's largest and most exciting infrastructure projects. We're looking for an experienced Senior Project Manager (Utilities & Infrastructure) to lead the operation and maintenance of critical site handed over built utilities and infrastructure that will support thousands of workers across the Sizewell C programme.

This is a unique opportunity to take ownership of a major operational portfolio, manage significant budgets, lead high-performing teams, and play a key role in delivering a nationally important project.

The Role

Reporting to the Site Operations Site Lead, you'll plan, lead and coordinate the operation and maintenance of wet and dry utilities, site infrastructure and support the service delivery of the services across the Sizewell C footprint.You'll work closely with senior stakeholders, contractors and service providers to ensure safe, efficient and compliant operations while driving continual improvement and operational excellence.

What You'll Be Doing

• Leading Site Operations Utilities & Infrastructure operations and maintenance of handing over built assets across the Sizewell C site
• Managing Service Delivery Managers, PMs / APMs and specialist contractors
• Overseeing a portfolio with an annual budget of approximately £30m
• Driving health, safety, compliance and operational performance
• Managing stakeholder relationships across the project and supply chain
• Coordinating utility and infrastructure handovers from construction into operations
• Supporting future infrastructure, utilities and site operations projects
• Providing clear leadership, governance and commercial oversight

What We're Looking For

• Degree-qualified in Construction Management, Civil Engineering, Engineering or similar
• SMSTS or IOSH qualified
• Significant experience delivering infrastructure, utilities or major construction projects
• Experience working within a Principal Contractor environment
• Strong leadership, stakeholder management and programme delivery skills
• Proven commitment to safety, quality and operational excellence
• Strong project controls, programme management and reporting experience.
• Experience In One or More of the Following Areas: Utilities Operations & Maintenance Infrastructure Management, Site Establishment, Logistics, Facilities Management, Earthworks , large Civil Engineering Projects

Desirable

• CIOB or MICE membership
• Experience on large-scale infrastructure projects

Why Join Sizewell C?

• Work on a nationally significant project
• Lead high-profile projects with real impact
• Competitive salary and bonus
• Excellent career development opportunities
• Collaborative and supportive team culture

Behavioural Competences

Humility

Recognise the value brought from different cultures and experiences

Be open to other's points of view and ideas, be willing to debate and to compromise

Positivity

Positively challenge poor quality and performance

Identify solutions at the lowest possible level

Encourage tier 1s and others to bring new ideas forward

Respect

Value the rules and environment in which we operate

Give and receive feedback with respect

Embrace and engage with new people and ideas

Solidarity

One team, working closely together and helping each other

Empowered teams always looking forward.

Shared responsibility for delivery the project outcomes

Clarity

Communicate clearly and consistently

Promote collaboration and team alignment

Clearer and faster decision making

Drive simplification at all levels

When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.

At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK.

To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years